Modern Xiaomi Redmi smartphones are high performance and affordable, but sometimes users need access to the internal components of the device. Most often, replacing the battery or repairing a broken screen are the main reasons for opening the case. Owners often wonder whether it is possible to do this on their own without damaging fragile plumes and without violating the leakage.
The procedure for dismantling depends heavily on the specific model of your gadget. If older versions of devices were often equipped with removable panels, then new flagships and budgeters require the use of a specialized tool and heat the glue. Wrong actions can damage the battery or display, so it is important to follow the algorithm clearly.
In this article, we will discuss in detail how to safely open the back cover of Xiaomi Redmi of various series. You will learn about the necessary tools, the intricacies of working with adhesive joints and precautions that will help keep the device in working condition.
Determination of shell design type
The first step before any manipulation is to determine the exact design of your smartphone. Xiaomi models are conventionally divided into two types: with a removable back cover and with a monolithic body.
Trying to crack the lid of a monolithic smartphone with a nail or knife will destroy it. Monolithic cases require preheating and the use of a suction cup. Usually these models have glass or plastic panels that fit tightly into the frame.
⚠️ Warning: If you feel that the lid is not easy to force, do not use force. Chances are, your device is glued construction, and it requires heating to open.
To check, try to find a small cutout or a recess in the corner of the back panel. If it's not there, and the frame of the body seems to be one with the back, prepare for the disassembly with heating. It's also worth checking the model online to find out the exact type of attachment.
Tools and workplace preparation required
You can't do a good job without the right tools. To work with Redmi, you'll need a minimum kit that you can buy from any electronics store or order online. Use of improvised tools like kitchen knives is strongly discouraged.
The main tool is a medical scalpel or a thin metal spatula to slap the lid, but to avoid scratching the case, it is better to use plastic spatulas (spoogers) and mediators, and also indispensable hair dryer for softening the glue.
- 🔧 Plastic blades and mediators for opening without scratches.
- 🌡️ Fryer or thermophene (temperature not higher) 100-120°C).
- 🧲 Magnetic screw-sorting mat.
- 💧 Suction cup to lift glass panel.
Prepare a clean, well-lit workplace. Cover the desk with a soft cloth so that the parts that fall don't break and the body doesn't scratch, and organize the space to keep the small screws that can bounce to the side.
☑️ Preparation for disassembly
Instructions for models with removable cover
If your model is from a budget segment of the past or specific modifications, the lid can be removed without tools. Find a recess in the bottom corner of the back panel. Put a nail or a plastic shoulder blade in there.
Carefully pull the panel up and away from you. You should hear the characteristic click of the plastic latch detachment. Move around the perimeter if the lid is tight, but don't overdo it to avoid breaking the mounts.
After removing the cover you will see the battery, slots for SIM-Some Xiaomi models also have screws under the back covering that lock the internal frame, which must be unscrewed before further disassembly.
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When removing the removable cover, start at the angle opposite the camera to avoid damaging the lens.
Technology of removing laminated back panel
Most modern Redmi Note and Xiaomi Mi have glued body. First, you need to turn off the device. Then turn on the dryer at the average temperature and start warming the perimeter of the back cover.
Keep the hair dryer at a distance of 3-5 cm from the surface, constantly moving it so as not to overheat one point. 2-3 minutes of heating is enough. After that, try to suction the edge of the lid. If it does not move, the heating should be repeated.
Insert a thin plastic card or blade into the gap, drive the tool along the perimeter, cutting the adhesive layer, and move slowly, avoiding the internal components, especially the plumes that go to the buttons or the fingerprint scanner.
| Phase | Action. | Time/Temperature |
|---|---|---|
| 1 | Perimeter warming | 2-3 minutes (80-100°C) |
| 2 | Creating a gap | Use of suction cups |
| 3 | Glue separation | Plastic card in circle |
| 4 | Removal of the lid | Careful lifting |
⚠️ Warning: Do not heat the area around the camera too much, as the optical stabilization and matrix may be affected by high temperature.
Working with internal components and plumes
Once you successfully remove the lid, you'll be able to access the insides, and often underneath the plastic shield, you'll find the main plume of the display and the battery connector, and you'll be very careful when you open that shield.
Xiaomi's plumes are very thin and fragile. They're easy to tear with a sharp edge of a metal frame or a sloppy tweezer. If you're planning to replace the battery, you first need to disconnect the battery connector from the motherboard.
Use a plastic blade to turn off the plume. Put the connector up from the bottom, avoiding pressure on the board itself. Mechanical damage to the contacts can cause the phone to fail even after assembly.
What to do if the plume is broken?
Assembly and restoration of leakage
After the repairs, you need to build the device, if you've removed the glue lid, the old glue probably lost its properties, and to restore the tightness and fixation, you need to apply a new layer of B-7000 or special glue for electronics.
Apply a thin strip of glue around the perimeter of the frame, avoiding getting into the camera and speakers. Let the glue dry for 1-2 minutes, then gently apply the lid and press tightly around the edges. Lock the device with rubber bands for 15-20 minutes.
For models with a removable lid, just fit the grooves and push until you click. Make sure there are no gaps left. After assembly, turn on the phone and check the touchscreen, speakers and communication modules.
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The quality of applying new glue directly affects moisture protection and the absence of backlash of the cover after repair.